diff options
Diffstat (limited to '')
| -rw-r--r-- | security/keys/permission.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/security/keys/permission.c b/security/keys/permission.c index 0b4d019e027d..efcc0c855a0d 100644 --- a/security/keys/permission.c +++ b/security/keys/permission.c @@ -36,33 +36,27 @@ int key_task_permission(const key_ref_t key_ref, const struct cred *cred, key = key_ref_to_ptr(key_ref); - if (key->user->user_ns != cred->user_ns) - goto use_other_perms; - /* use the second 8-bits of permissions for keys the caller owns */ - if (key->uid == cred->fsuid) { + if (uid_eq(key->uid, cred->fsuid)) { kperm = key->perm >> 16; goto use_these_perms; } /* use the third 8-bits of permissions for keys the caller has a group * membership in common with */ - if (key->gid != -1 && key->perm & KEY_GRP_ALL) { - if (key->gid == cred->fsgid) { + if (gid_valid(key->gid) && key->perm & KEY_GRP_ALL) { + if (gid_eq(key->gid, cred->fsgid)) { kperm = key->perm >> 8; goto use_these_perms; } - ret = groups_search(cred->group_info, - make_kgid(current_user_ns(), key->gid)); + ret = groups_search(cred->group_info, key->gid); if (ret) { kperm = key->perm >> 8; goto use_these_perms; } } -use_other_perms: - /* otherwise use the least-significant 8-bits */ kperm = key->perm; |